Home water softening
By: Ronald E. Hermanson.
Contributors: Washington State University. Cooperative Extension.; United States. Dept. of Agriculture.
Series: Clean water for Washington; EB -- 1583; Extension bulletin (Washington State University. Cooperative Extension) -- 1583.
Publisher: Cooperative Extension Service, Washington State University
Published: 1991
Place of publication: [Pullman]
Language: eng
Subjects: Water -- Softening; Water -- Hardness; Water quality
Notes: Caption title.

"May 1991"--P. [4] of cover.

"Issued by Washington State Cooperative Extension ... and the U.S. Department of Agriculture ..."--P. [4] of cover.